Update dependency graphene-django to >=3.0.0, <=3.1.3

See merge request !1294

Resolve "Provide URL representation for every object"

Closes #871

See merge request !1268

Resolve "'fields_for_model' is not defined in ExtensibleForm"

Closes #887

See merge request !1292

This allows, in the nFC context, for more privacy in the plain
data written to tags.

Update dependency graphene-django-cud to ^0.11.0

See merge request !1291

Resolve "Logging broken with format string"

Closes #888

See merge request !1293

Translations update from Weblate

See merge request !1272

Currently translated at 100.0% (198 of 198 strings)

Translation: AlekSIS/AlekSIS-Core-Frontend
Translate-URL: https://translate.edugit.org/projects/aleksis/aleksis-core-frontend/de/

Currently translated at 100.0% (157 of 157 strings)

Translation: AlekSIS/AlekSIS-Core-Frontend
Translate-URL: https://translate.edugit.org/projects/aleksis/aleksis-core-frontend/ru/

Resolve "SImple brint base template missing <base>"

Closes #884

See merge request !1290

Update dependency django-titofisto to v1

See merge request !1289

Update dependency graphene-django to >=3.0.0, <=3.1.2

See merge request !1288

Resolve "Data management for the Models `Room` and `SchoolTerm`"

Closes #831 and #715

See merge request !1208

# Conflicts:
#   CHANGELOG.rst